earticle

영어

The telecommunication world is evolving towards networks and different services. It is necessary to ensure interoperability between different networks to provide seamless and on-demand services. As the number of services and users in Internet Protocol Multimedia Subsystem (IMS) keeps increasing, network virtualization and cloud computing technologies seem to be a good alternative for Mobile Virtual Network Operators (MVNOs) in order to provide better services to customers and save cost and time. Cloud computing known as an IT environment that includes all elements of the IT and network stack, enabling the development, delivery, and consumption of Cloud Services. In this paper, we will present the challenges and issues of these emerging technologies. The first part of this paper describes Cloud computing as the networks of the future. It presents an overview of some works in this area. Some concepts like cloud services and Service oriented Architecture designed to facilitate rapid prototyping and deployment of on demand services that enhance flexibility, communication performance, robustness, and scalability are detailed. The second part exposes SOA and its concept, the third one deals with virtualization.